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ZOO 101 ZOO 101 Past Questions Objective Question

Question

How does the excretory system differ from egestion?
Options
A Excretion involves the removal of undigested food, while egestion removes metabolic wastes.
B Egestion is the removal of undigested food or feces, while excretion removes metabolic wastes.
Correct Answer
C Excretion occurs only in the kidneys, while egestion occurs in the liver.
D Egestion requires active transport, while excretion does not.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Excretion is the removal of metabolic wastes (products of cellular metabolism), while egestion is the removal of undigested food or feces from the digestive tract. These are distinct processes.

Hint

One involves waste from cellular processes; the other involves unabsorbed material from the digestive tract.

Question Info